نتایج جستجو برای: forest management plans

تعداد نتایج: 987018  

2011
Julian C. Fox Rodney J. Keenan Cris L. Brack Simon Saulei

Forest management worldwide is increasingly focused on values such as biodiversity conservation, carbon, water and recreation as well as timber production. Ownership and governance arrangements are also changing, with an increase in private ownership of forest resources that is focused on timber production and devolution of management and control to the community level. Forest management is par...

Journal: :caspian journal of environmental sciences 2013
a. salehi al. et

the purpose of this study was to investigate the impacts of forest-based activities on the conditions of the ganaveh woodland in the southern zagros, iran, and to suggest strategies for improving the implementation of forest resource management plans. woodland inventory data was gathered in 2003, accompanied with data from interviews in 2008, were used in this study. the results show that there...

2011
Rodney J. Keenan Cris L. Brack Martin Golman Jerome K. Vanclay

Planning and management of forest resources in Papua New Guinea (PNG) has sometimes resulted in overcutting, resource depletion, unintended environmental impacts and uncertainty about the long-term capacity of forests to supply the future needs of local communities or industry. Sound inventory and planning are critical for sustainable forest management. Good systems are in place in PNG to deter...

2002
STEPHEN K. SWALLOW

Foresrry models often ignore spatial relationships between forest srands. This paper isolates the effects of stand interactions in muitlpie-use forestry through a straightforward extension of the single-stand model. Effects of stand interactions decompose into wealth and substitution effects and may cause time-varying patterns of resource use for a forest stand. Simulations illustrate that a st...

2007
Junas Adhikary

Forest harvest planning and scheduling problem is an important part of forest resource management. It is a complex task requiring expertise and integration of multidisciplinary elds. We review mathematical programming as applied to forest harvesting problem. The review suggests that long term scheduling is diicult because of the prohibitive size of the model. Such long term scheduling allows on...

2009
Armando González-Cabán

González-Cabán, Armando. 2009. Proceedings of the third international symposium on fire economics, planning, and policy: common problems and approaches. Gen. Tech. Rep. PSW-GTR-227 (English). Albany, CA: U.S. Department of Agriculture, Forest Service, Pacific Southwest Research Station. 395 p. These proceedings summarize the results of a symposium designed to address current issues of agencies ...

1999
Reed F. Noss

Enlightened forest management requires reliable information on the status and condition of each forest ± interpreted from a broad context ± and of change in forest conditions over time. The process of forest planning must begin with a clear statement of goals, from which detailed objectives and management plans follow. Goals and objectives for forest management should re ̄ect the conservation va...

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